@echo off
set str1=三通it学院
set str2=
for /r "E:\baiduwangpan\hanteacher\" %%a in (*.mp4) do (
	set "file=%%a"
 	set "name=%%~na"
 	set "extension=%%~xa"
 	call set "name1=%%name:%str1%=%str2%%%"
 	setlocal enabledelayedexpansion
 	rem ren "!file!" "!name!!extension!" 2>nul
 	rem >>G:\lists3.txt echo "!file!" "!name1!!extension!"
 	>>G:\lists3.txt echo "!name!" "!name1!"
 	endlocal
)